html,body{
    width: 100%;
    height: 100%;
    background: #333333; 
}
body{
    width: 100%;
    height: 100%;
    background: #333333; 
}
.page_background {
    width: 100%;
    height: 100%;
    background: #333333;
} 
.amount_details {
    &_box {
        padding: 0.2rem 0 0.2rem 0.1rem;
        border-bottom: 1px solid red;
        .left {
            display: inline-block;
            width: 2rem;
            font-weight: bold;
        }
    }
}

    